Holotype: FMNH PR 1635

Locality: Near Delta, south-east Iowa.

Horizon: Upper St. Louis Formation.

Biostratigraphy:

Age: Early Carboniferous.

Material: Skull and fragmentary skeleton.

Referred material:

FMNH PR 1639: Fragmentary skeleton.

SUI 52087: Right half of a pelvis.
Note: Proto-anthracosaur